What about SEAMS, mentioned here? https://www.faa.gov/uas/getting_started/where_can_i_fly/airs...
iirc, it is not considered official data, so if it makes a mistake and you violate a TFR, YOU are on the hook.
alt Hacker News
iirc, it is not considered official data, so if it makes a mistake and you violate a TFR, YOU are on the hook.